The most representative constellation in the winter night sky

The most representative constellation in the winter sky is Orion.

This constellation has distinctive features that people can recognize at a glance. Orion is located in mid-air near the south celestial pole, with a roughly triangular outline. The brightest star is Orion α, also known as Betelgeuse. Orion Alpha is the ninth brightest star in the whole day, with a brightness of about 0.05. , and issued a strong red light. Orion β, also known as Betelgeuse, is located in the east of Orion α. It emits blue-white light with a brightness of about 0. 1.

In Orion, there are three stars in a line, which is called the Orion Belt. These three stars are γ, δ and ε of Orion, and together with α and β of Orion, they constitute the main body of Orion. The stars below Orion's belt are arranged in a huge arc, which is called Orion sword.

Detailed explanation

Besides the obvious arrangement of stars, Orion also contains many other celestial bodies, the most famous of which is the Orion Nebula. This nebula is about 1500 light-years away from the earth, and lies between the α star and ε star of Orion. On a clear night without moonlight interference, people can see a bright and fuzzy spot in the southern sky, which is the Orion Nebula.

Besides Orion Nebula, Orion also contains many other nebulae and clusters, the most famous of which is Horsehead Nebula. This nebula is located between Orion's beta star and zeta star, and it is named because its shape resembles a horse's head. The Horsehead Nebula is a very dark nebula with many bright stars and clusters inside. Besides celestial bodies, Orion is also associated with some fairy tales. In many cultures, Orion is regarded as a brave and strong hunter (the above content is for reference only).